A New Type of Thermoresponsive Copolymer with UCST‐Type Transitions in Water: Poly( N ‐vinylimidazole‐ co ‐1‐vinyl‐2‐(hydroxymethyl)imidazole) | Zendy

Meiswinkel Georg | Zendy; Ritter Helmut | Zendy

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A New Type of Thermoresponsive Copolymer with UCST‐Type Transitions in Water: Poly( N ‐vinylimidazole‐ co ‐1‐vinyl‐2‐(hydroxymethyl)imidazole)

Author(s) -

Meiswinkel Georg,

Ritter Helmut

Publication year - 2013

Publication title -

macromolecular rapid communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 154

eISSN - 1521-3927

pISSN - 1022-1336

DOI - 10.1002/marc.201300213

Subject(s) - copolymer , upper critical solution temperature , cloud point , hydroxymethyl , polymer chemistry , monomer , imidazole , materials science , glass transition , chemistry , organic chemistry , polymer , lower critical solution temperature , aqueous solution , composite material

1‐Vinyl‐2‐(hydroxymethyl)imidazole ( 2 ) is synthesized by a procedure described in the literature. Corresponding copolymers with upper critical solution temperature (UCST)‐type transitions in water and high‐glass transition temperatures ( T g ) are prepared by free radical copolymerization with N ‐vinylimidazole ( 1 ). Depending on the copolymer composition, the cloud point can be varied between 19 and 41 °C. As the copolymer composition is identical with the monomer feed ratio, the cloud point can be easily tuned in the desired range. Furthermore, a distinctive pH‐dependence and salt effect can be observed.

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